sanitation

1. N-UNCOUNT Sanitation is the process of keeping places clean and healthy, especially by providing a sewage system and a clean water supply. (尤指通過提供排污系統(tǒng)和潔凈水源的) 公共衛(wèi)生

...the hazards of contaminated water and poor sanitation. …污水和不良公共衛(wèi)生的危害。